APA aipamena

Perry, J., & Craufurd, E. (1955). The black sheep. Gollancz.

Chicago Style aipamena

Perry, Jacques, and Emma Craufurd. The Black Sheep. London: Gollancz, 1955.

MLA aipamena

Perry, Jacques, and Emma Craufurd. The Black Sheep. Gollancz, 1955.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.